Universal grain-cutting machine



Feb. 2, 192D. 1,571,408

D. GUELBAUM UNIVERSAL GRAIN CUTTING MACHINE Filed April l5, 1925 2 Sheet's-SheeI l D. GUELBAUM UNIVERSAL GRAIN CUTTING MACHINE Feb. 2 1926..

Filed April 15, 1925 2 Sheets-Shea?I kh l Patented Feb. l2, 1926.

Unirse sm'ras DAVID GUELBAUM, OF SYBACUSE, NEW YORK.

UNIVERSAL GRAIN-CUTTING MACHIINE.

Application filed April 15, 1325.

To all fio/0m t may concern:

Be it known that I, DAVID GUELBAUM, a citizen of the United States, and a resident of Syracuse, in the county of Onondaga and State of N ew York, have invented a. certain new and useful Universal Grain-Cutting lilachine, of which the following is a speciiication.

My invention of a universal grain cutting machine has for its object the clean-cut ting of grains, without cracking or crushing of the grains and without powdered wastage, by means of stationary and rotating vertical shearing knives, and it is made universal in its action by having the grain passages between its shearing knives made adjust-able to a fraction of one hundredth of an inch, while the machine is in full running, so that on the same machine any kind of grain may be cut, small or large, such as wheat, rye, oats, barley, corn and even beans, coarse or line, as desired. And reference is here made to the applicants previous patents on: grain cutting machine #1,451,217, issued April 10, 1923, and on grain cut-ting machine with automatic scoops #1,456,003, issued May 22, 1923, my present machine differing from said preceding ones by said universality of its action, by its shearing knives made detachable and by its adaptability to varying velocities of the rotor knives.

My invention comprises the above novel features, embodied in combinations and constructions as hereinafter set forth and claimed, and as illustrated in the accompanying drawings, in which similar characters designate the same corresponding parts in all the views.

Fig. 1 is avertical section of my universal grain cutting machine in its ensemble.

Fig. 2 is a top view of same, with part of the hopper cut olf.

Fig. 3 is a magnified part view ofthe lower ring with the cast on diametrically opposite pairs of lugs, showing the shaft and excentrics of the grain passages adjusting mechanism passing between said pairs of lugs.

Fig. #l is a. magnified part view of the outer lugs on bottom of the stationary cylinder, holding said shaft of the grain passages adjusting mechanism.

Fig. 5 is a magnified sectional bottom view on line 12-12 of said inner and outer lugs,

Serial No. 23,300.

showing the end of said regulating shaft with its exccntric and bearing plates.

Fig. G is a magnified View of said inner and outer bearing plates.

Fig. 7 is a part cross section on line 1--1 of the stationary and rotor cylinders, showA ing the attached shearing knives and scoops.

Fig. 8 is a magnified part elevation on line 10-10, in development, of the inner surface of the stationary cylinder, showing the way the knives are fastened to said cylinder with the baflies fastened to the rings at t-op and bottom of said cylinder.

Fig. 9 is a similar magnified part elevation on line 10-10, in development, of the outer surface of the rotor cylinder, showing the way the knives and baflies are fast-- ened to said cylinder.

Fig. 10 is a magnified part vertical sec-" tion on line 2-2 of the rotor and stationary cylinders with the shearing knives between, sho-wing the upper ring with its ball bearings resting on top of the stationary cylin` der and the lower ring at the bottom of said cylinder, and the scoops attached to the dome of the rotor cylinder.

Fig. 1l is a magnified elevation of the operating mechanism, closing and opening the grain passages as desired.

FiO. 12 is a magnified part vertical sec.- tion of the inner and outer lugs, showing the end of the shaft with the excentric and bearing plates of the grain passages adjusting mechanism.

As seen on Figs. 1 and 2, 1 is a stationary cylindrical grain hopper, flanged at the top and tapered at its bottom, having a cast on inner flange 2 and provided with outside supporting brackets 3. To the inner flange 2 is bolted on the bottom flange 4 of the stationary cylinder 5, having longitudinal slots with beveled edges outside, Figs. 7 and 10, for the grain from the hopper 1 to be easily scooped into said slots.

To the solid portions between the slots of` said cylinder 5 are fastened the stationary knives 6, Figs. 7, 8 and 10, projecting partly above and below the cylinder 5, as shown on Figs. 8 and 10. On its top the cylinder 5 carries the ring 7 of same diameter and thickness as the cylinder 5 and resting on ball bearings, Fig. l0, while at the bottom of cylinder 5 there is similar ring 8, Figs. 8 and 10, both these rings being connected together by the batiies 9, fastened to the rings,

as shown on Fig. 8. By turning slightly the ring 8 to the right or the left, Vthe baiiies 9 will approach towards or recede from the knives 6, thus closing or opening the grain passages as much as desired.

Inside the stationary cylinder 5 is located the rotor cylinder 10, Figs. 7 and 10, having longitudinal slots similar to the stationary cylinder 5, but much wider ones with its solid portions between correspondingly narrower and reenforced' by the inside ribs 11, as shown on Figs. 7 and 10. To these solid portions of the rotor 10 are fastened the rotor knives 12, Figs. 7 and 9, while covering part of the wide slots are the baffles 13, fastened over the slots to the top and bottom of the rotor 10, as shown on Figs. 9 and 10.

vWhile the function of the baffles 9, Fig. 8, on the stationary cylinder 5, is to regulate the width of the grain passages for different sizes of grains, the object of the baffles 13, Fig. 9, on the rotor cylinder is to adapt the machine to various velocities of the rotor: at high velocities of the rotor knives, the baffles 13 may be dispensed with entirely and the wide passages in the rotor cylinder left fully open, in order to allow enough time for the grains to be scooped into the. stationary passages and protrude sufficiently, before the rapid moving knives 12 pass by; while at mode-rate velocities of the rotor cylinder 10, wider or narrower baflles 13 may be used to cover up part of 4the wide passages in the rotor cylinder to prevent some of the grains from passing thru prematurely. y

At its top the rotor cylinder 10 terminates into the cast on dome 14, Figs. 1 and 10, overlapping and protect-ing the top ring 7 and provided at its centre with the hub 15, Figs. 1, 2 and 10. At its circumference the dome 14 is provided with the cast on projections 16, Figs. 2 land 10, to which are fastened the scoops 17, Figs. 1, 2, 7 and 10, so that while the rotor cylinder 10 is revolving inside of the stationary cylinder 5, the slanting scoops are revolving around the outer surface ofr the stationary cylinder 5, scooping up the grain inthe hopper and forcing it thru the beveled vertical passages of the stationary cylinder5 to be caught upk by the revolving knives 12 of the' rotor 10. V

In order to impart a slight movement to the upper and lower rings 7 and 8 with the fastened to them battles 9, Figs. 8 and 10, thus adjusting the .grain passages between said baffles 9 and the adjacent knives 6 and then hold the baflles 9 innnovably in that desired fixed position, the lower ring 8 is provided with the two pairs of lugs 18, Figs. 3 and 12, diametrically opposite each other. Between these lugs passes the shaft 19 with the excentric 20 at each end, key seated and setscrewed ati 180 to each other, as on Fig.

3, these excentrics tting in exactly between each pair of lugs 18. The shaft 19 is supported by the two outer bearing plates 23, Fig. 6, at each end of the shaft 19, Figs. 12 and 5, fastened to the lugs 22, Figs. 12, l and 5, on the stationary cylinder 5; and also by the two inner bearing plates 21, Fig. 6, fastened to the lugs 18, Figs. 3, 12 and 5, on the lower ring 8.

The shaft 19 is held in its fixed position by the outer bearing plates 23 and can only turn on its axis, while the inner bearing plates 21 are provided with oblong holes, allowing a slight movement of the lower ring 8, Figs. 12 and 5 relative to the shaft 19. Turning the shaft 19 slightly one way or the other, the eXcentrics 20, Fig. 3, will push the lugs 18 with the lower ring 8 and the fastened to it baffles 9, Fig. 8, to the right or to the left, closing or opening more or less the grain passages ofthe stationary cylinder' 5, without interfering with the rotation of the rotor knives.

In order to regulate the grain passages micrometrically, to a fraction of one hundredth of an inch, the bent brace 24, Figs. 2 and 11, is fastened to the outside of the hopper 1, holding within it the screw 25 which can only turn but cannot move lengthwise, while the square nut 26 on that screwbutting flatly against the brace 24, can only move lengthwise but cannot rotate when thc screw 25 is turned.

The bent lever 27, Figs. 1 and 11, fastened to the end of the shaft 19, passes upward over the brace 24, while a projecting pin on the square nut 26, Figs. 1 and 11, passes thru the longitudinal slot in the brace 2st into the longitudinal slot in the lever 27, Fig. 11, so that turning the screw 25 by the handwheelv 28, the square nut 26, moving alongthe brace 24, will turn the lever 27 to the right or to the left, towards the position shown in dash and dot, Fig. 11, and with it the shaft 19 with the excentrics 20, Fig. 3, and impart a minute movement to the lower and upper rings 8 and 7 with the fastened to them baffles 9, Fig. 8, towards or from the knives 6.

To the brace 24, outside, is fastened the yare sector 29, Fig. 11, passing over the lever 27 to which it is connected by a bolt with a thumb nut, Figs. 1 and 2, the bolt moving along the `circular slot in tlie arc sector 29. By tightening the thumb nut vthe lever 27 is held fixed in any desi-red position and with it the shaft 19 with its excentric's. Divisions marked on the arc sector 29, Fig. 11, indicate the opening width of the grain passages for any position of the lever 27 in hundredths of an inch.

To the top flange of the grain hopper 1 is bolted on the cover 30, Fig. 1, stitfened with ribs and provided with the caston grain chute 31, the central hub 32 and the brackets for pillow blocks to rest on, as shown on Fig. l. l

rlhru the hub 32 of said cover and the hub l5 of the rotor dome 14, Fig. l, passes the gudgeon Sil, key seated in the rotor hub l5, but free to turn in the cover hub 32. The gudgeon Bet with the dome lll is carried by the ball bearing support 35 on top of the cover 30. On top of the gudgeon 3A is key seated the bevel pinion 36 engaging the bevel gear 37 on the horizontal shaft 38 driven by the step pulley 39 and held in pillow blocks belted on to the brackets 83 on top of the cover 30, as shown on Fig. l.

Instead of the belt drive shown on Fig. l, a direct electric driving motor may be applied to the gudgeon 34.

What I claim is:

l. A universal grain cutting machine, comprising a cylindrical grain hopper with an open top and a tapered bottom flanged inside and having a fastened on cover on top, a stationary cylinder with an open top and a flanged bottom fastened to the bottom v flange of said hopper and having longitudinal slots for passage of the grain and knives fastened inside along said slots, a ring on top of said stationary cylinder resting on ball bearings and a ring on bottom of said cylinder connected to said top ring by baf fles, means for turning said rings with the fastened on baffles for .regulatingsaid grain passages, a rotor cylinder inside of said stationary cylinder with an open bottom r and a closed dome on top with a hub in eentre and having longitudinal slots with fastened on knives and baflles outside rotating` in sliding contact over the knives and baffles on said stationary cylinder, means for supporting and rotating said rotor cylinder, means for micrometrically adjusting and indieating the opening width of said grain passages, substantially as and for the purpose specified.

2. A universal grain cutting machine, comprising a cylindrical grain hopper with an open top and a tapered bottom flanged inside and having a fastened on cover on top provided with a hub in centre and with a ball bearing support, a stationary cylinder inside of said hopper having an open top and a flanged bottom fastened to the bottom flange of said hopper and having longitudinal slots with fastened on knives, a ring on top of said cylinder resting on ball bearings and a ring at the bottom of said cylinder connected to said top ring by inside bafllles, means for turning said rings for regulating the grain passages between said knives and baffles, a rotor cylinder inside of said stationary cylinder with an open bottoni and a Closed dome on top with a hub in centre and having longitudinal slots with fastened on knives and :baffles outside rotating in sliding contact over the knives and baffles on said stationary cylinder, means for supporting and rotating said rotor cylsupporting the grain passages regulating shaft7 a ring on top of said stationary cylinder resting on ball bearings and a ring at the bottom of said cylinder connected to said top ring by baffles, means for turning said rings for regulating the grain passages between said knives and baffles, a rotor cylinder inside of said stationary cylinder with an open bottom and a closed dome on top with a hub in centre and having longitudinal slots with fastened on knives and baffles outside rotating in sliding Contact over the knives and baffles of said stationary cylinder, means for supporting and rotating said rotor cylinder, means for micrometrically adjusting and indicating the opening width of said grain passages, substantially as and for the purpose described.

4. A universal grain cutting machine, comprising a cylindrical grain hopper with an open top and a tapered bottom flanged inside and a cover on top, a stationary cylinder inside of said hopper with an open top and a flanged bottom fastened to the bottom flange of said hopper and having longitudinal slot with knives fastened inside and provided at its bottom flange with two pairs of lugs for shaft support, and a ring on top of said cylinder' resting on ball bearings and a ring at the bottom of said cylinder connected to said top ring by fastened on baffles and provided with two pairs of lugs in line with the lugs on the bottom flange of said cylinder combinedly Supporting a shaft having an eXcentric at each end for turning said rings with the fastened to them bafHes and thus regulating the grain passages between the knives and the baiiles, a rotor cylinder inside of said stationary cylinder with an open bottom and a closed dome on top with a hub in centre and having longitudinal slots with fastened on knives and baffles rotating .in sliding contact over the knives and baffles on said stationary cylinder, means for supporting and rotating said rotor cylinder, means for micrometrically adjusting and indicating the opening width of said O'rain passages, substantially as and for the purpose specified,

5. A universal grain cutting machine,

comprising a cylindricalk grain hopper with an open top and a tapered bottom flanged inside with a fastened on cover on top hav ing a hub in centre with a ball bea-ring support, a stationary cylinder inside of said hopper with an open top and flanged bottom fastened to the bottom flange of said hopper and having longitudinal slots with fastened on knives inside, a ring on top of said stationary cylinder resting on ball bearings and a ring at the bottoni of said, cylinder connected to said top ring by fastened on baiiies, means for turning,l said rings for regulating the grain passages between said knives and baffles, and a rotor cylinder inside of said stationary cylinder with an open bottom and a Closed dome on top provided at its circumference with projections and fastened on scoops for snooping the grain from the hopper into the longitudinal slots on said stationary cylinder and having longitudinal slots with fastened on knives and bafl'les rotating' in sliding Contact over the knives and bai-flies inside of said stationary Cylinder and having a hub in the centre of said deine with a `einige-,on passing` thru the hub on the cover of said grain hopper and thru the ball ber-ring support on top of said cover for supporting and rotating said rotor cylinder and dome' with its fastened on scoops, means for mieroinetrically adjustingand indicating the opening width of said. `grain passages, substantially as and for the purpose set forth.

G. A universal grain cutting machine, comprising a cylindrical grain hopper with an open top and a tapered bottom flanged inside with a. cover on top, a stationary cylinder inside of said hopper with an open top and flanged bottom fastened to the bottom' iia'nge of said hopper and; having longitudinal slots with fastened on knives and provided with two pairs of lugs on its bottom flange holding the grain passages regulatingshaft with its operating lever, a ring on top of said cylinder resting on ball bearings'and a ring at the bottom of said cylinder lcrf'innected to said top ring by fastened on baflies and provided with two pairs of lugs holding said grain' passages regulatingr shaft with its operating lever, a rotor cylinder inside of said stationary cylinder with an open bottom and a closed dome on top with a supporting hub and gudgeon in centre and having longitudinal slots with fastened on knives and baffles and with fastened on scoops on'said dome, and a bent horizontal brace fastened to said grain hop per outside and holdingscrew between its ends with a' nut moving along said screw and having` a projectingfpin passing,` thru a slot vin said brace and thru a slot on the operating lever of said grain passages regulating' shaft for inicrometrieally turning` said lever along, a fastened to said brace circular arc withv marked on divisions indicatingthe correspondino opening); width of said grain passages, substantially as and for the purpose described. s

1n 'testimony whereof, I have hereunto signed my naine, at Syracuse, in the county of Onondagfmand State of New York, this i4- da-y of April, 1925.

DAVID GUELBAUM, 

